Vehicle jack



Mar.'27,1923. 1,449,802.

- I. lA B B l U S0.

VEHICLE JACK.

FILED AUG. 3l.l i921. -2 SHEETSf-VSHEET 2.'

Eph Amma@ 'atkwmtff Patented Mar. 27, 1923.

Unirse stares VEHICLE J' ACK.

Application iled'August 31, 1921. Serial No. l197,097.

To all whom t may concer/n.:

Be it known that I, JOSEPH ABBIUSO. subject of the King of Italy, residing 4at Milford, in-the county of Worcester and State 5 of Massachusetts, have inventedv certain new and useful Improvements in Vehicle Jacks, of which the following is a specification'.

This invention relates to jacks of the ball bearing type, and the primary object of the v invention is the provision of an improved jack particularly adaptable for use in connection with motor vehicles, which will be of strong and serviceable construction, easy and simple t0 operate, and which will be of a compact nature, so as to occupy a minimum amount of space during transportation or storing.

Another object of the invention is to provide a vehicle jack of the above character,

which will effectively eliminate the many inconveniences inherent with other jacks of this type, and which is so constructed as to permit the jack to be readily used on soft or uniirm ground without the slipping thereof from under the load, and which will prevent the entrance o-f mud or dirt into the base of the jack, thus insuring the long life and durability of the` jack.

A further object of the invention is to provide a novel means of associating the take down operating handle with the operating portion of the jack, so as to permit the jack to be readily placed in position, under a load by the handle, without the swinging of the jack on the handle, said connecting means permitting the handle tb be readily swung to operative or inoperative position, and which will form a protection for the spring of the locking device of the handle,

0 so as to prevent-the setting of the spring and the consequent ruining thereo-f.

A still further object of the invention is to provide a novel means of constructing the jack base, so that the parts of the jack can be readily and quickly assembled or disassembled by the ordinary layman, thereby permitting the quick replacing of any part of the jack that may become worn or broken,

due to continuous use.

With these and other objects in view, the invention consists in the novel construction,

longitudinal section through the improved jack, taken "on i the line l'-l of Figure 2, showing partsof the jack in fragmentary elevation. y 7 60 Figure 2 is a top plan' View of the ack. p

Figure 3 is a side elevation of the operating handle for the jack, parts of the handle being shown in section. f

Figure 4 is a horizontal section through the improved jack, taken on the line 4 4 of Figure l.

Referring to the drawings in detail, wherein similar reference characters designate cor+ respo-nding parts throughoutthe` severalv views, thel letter A generally indicatesY the base of the improved jack; B, the screw of the jack; C, the operating mechanism for thel screw; and D, the handle for actuating the operating means. i

The base A is formed of any desired-material possessing the necessary qualifications and strength, and includesv the hollow standard 5and the flat base plate 6j The base plate 6 is of a substantially rectangular configuration, but it is to be understood that the same can be of' any other desired shape, providing the same has the necessary a'rea in order toform an effective support forthe column or hollow standard 5. The base plate 85 6 is of a solid construction, so as to abso-` lutely preclude the entrance of mud or dirt into the column which has been found so detrimental in other makes of jacks. If desirable, the column 5 and the base plate 6 can be reinforced, by suitable radially extending bracing ribs or integral cleats 7 The upper end of the column or hollow standard 5 has formed integral therewith, the head or. gear casing 8, which includes theI horizontally disposed upwardly extending portion 9, and the laterally extending portion 10. Aj shoulder l1 forming an annular guidegway for thescrew B divides the casing 9 from the column 5, while an integralvboss 12 defines the casing l0 from the column 5, and asv Shown this boss 12 pro-jects into the casing 10 and is in alignment with an outwardly projecting boss 13. These bosses 12 and 13 form bearings for a part of the operating iechanism C, which will be hereinafter more fully described. lt is to be noted that the boss 13 has its outer surface curved, and is substantially a semispherical form. The npper outer surface of the portion or casing of the head 8 is provided with an annular shoulder or strengthening flange 15, and as shown this flange surrounds an axial opening 16, which is in direct alignment with the shoulder or annular guide 11.

One side face of the portions 9 and it) of the head 3 and the upper portion of the column 5 is left open, and'is closed by a removable cap 1'?. This cap 1T conforms to the general outline and configuration of the column 5 and the portions 9 and 10 of the head 8i, and form a convenient means for permitting the easy assembling of the various parts of the device, and form an important part of the invention, and reference will be hereinafter made to this part, As shown the cap 17 is provided with eyes 13, which are adapted to abut attaching` ings 19 formed integral with the base and head 3, and these eyes and lugs 13 and 19 receive suitable removable attaching screws 20. lt can be seen that it is merely necessary to remove the screws 20 in order to disclose the inner portion of the parts 9 and 10 of the head 8.

The screw B is made of metal of the desired tensile strength, and can be provided with a relatively fine or relatively coarse thread, as may be desirable. The lower end of the screw is provided with a diametri cally extending pin 20, the terminals of which extend radially therefrom and are slidablyv mounted in longitudinal extending guideways 21, formed in the inner surface of the column or hollow standard 5, and it can be seen that this pin 2O prevents the accidental rotation of the screw B without stopping the vertical sliding of the screw. The upper end of the screw B receives the lifting foot 23. The lifting foot 23 has its lower face provided with an inwardly extending axial socket 24e for receiving the screw, and if so desired a suitable shoulder can be formed on the screw, in order to form a rest upon which the lower surface of the lifting foot 23 may sit. The lifting foot 23 is held against displacement by a suitable diametrically extending retaining' pin The lifting foot 23 can be formed relatively' large if so desired, and the upper surface thereof is curved arcuately as at 26 and serrated as at 27. The arcuate face 26 of the lifting foot 23 permits the same to readily engage the work and to prevent slipping of the foot from out of engagement with the work when the base of the jack is placed. upon uniirm or rough ground. lt can be seen that when the screw is in its lowermost position, the lifting foot 23 will rest upon the reinforcing flange 15.

The operating means C for the jaclr consists of a diagonally extending stub shaft 30, which has its opposite ends rotatably mounted in the bosses 12 and 13. The inner end of the stub shaft 30 has its face provided with a semi-spherical depression 31, so as to form a part of one guideway 21, with which it is in direct alignment. This permits the pin 2O to ride into the same during the uppermost position of the shoe. A thrust bearing 32 is interposed between the bevel operating gear 33, which is secured to the shaft 30 by means of a pin 34C, and the inner surface of the portion 10 of the head and this thrust bearing permits the Aeasy operation of the stub shaft. rThe bevelled gear 33 is of a relatively small diameter and meshes with a bevelled gear 35, which has a relatively large diameter. This bevelled gear 35 has its bore internally threaded as at 36, for the reception of the screw B, and if found desirable, this bevelled gear may be provided with a suitable base for insuring a good contact between the bevelled gear and the screw. In order to permit the easy operation of the bevelled gear, a suitable bearing 33 is interposed between the gear and the fiange 11, as clearly shown in F igure 1 of the drawings. Tt can be noted that Aupon turning movement of the stub shaft 30,

movement will be imparted to the bevelled gear 35 and consequently operates the screw B.

The outer end of the stub shaft 30 pro jects outwardly of the boss 13, and is provided witn a head 40. This head 10 has its opposite sides iattened as at 41 and its outer face curved arcuately as at 12, and forms the means for permitting the handle D to be connected to the stub shaft 30.

The outer curved surface i2 of the head at the central portion thereof is provided with a depression or locking notch 43, which is formed relatively shallow. 'Ut-her locking' notches or depressions -lt are formed in the outer surface of the head 40 and constitute the inoperative locking portions of the operating handle D, and these: depressions are formed relatively deep for a purpose which will be hereinafter more fully described.

Tn the assembling of the improved device the cap or plate 1i" is removed and the gear 35 placed in position through the open side of the casing 9, and is placed upon the ball bearing 33 which is in turn laid upon the flange 1l. The screw B then placed through the opening 16 and threaded into the bore of the bevelled gear 35 until the opening f r the pin 20 in the lower end of the screw .o comes into direct alignment The pin 20 is then in with the boss 12. serted in the part 10 of the head 8, through the openside thereof, and inserted throughl the boss 12 and placed into the opening in the screw B. This is readily accomplished and permits the pin 20 to be readily'placed in the guide ways 2l. The bevelled gear 33 and the thrust bearing 32 is then placed in the part l0 through the open side thereof and the stub shaft 30 inserted through the boss 13, the thrust bearing 32, the bevelled gear 33 and through the boss l2. The locking pin 34 is then placed in posit-ion through the stub shaft and the bevelled gear. The device is then in assembled form and the top plate 17 is placed in position and held against displacement by means' of the screws 20. The jack is thenready for use.

The operating handle D constitutes the inner relatively short section and the removable section 51, which can be formed of any desired length. The inner section 50 is bifurcated, as at 52, and receives the head 40, and is pivotally connected thereto by means of a pin 53. The inner end of the section 50 of the handle is provided with an inwardly extending bore 54, in which is slidably mounted the locking dog o-r pawl 55, which is normally urged toward the head 40 by means of an expansion spring 56. It can be seen that when the handlesection 50 is swung to its operative and inoperative positions as shown by the notches 43 and 44, the handle will be held against accidental swinging movement, by the seating of the pawl in these notches. The notches 44 constituting the inoperative position of the handle section 50 are formed relatively deeper than the notch 43, in order to permit the expansion of the spring 56, and thereby preventing the setting thereof due to the continual contraction thereof. TvVhen the handle section 50 is swung to its operative position, shown by the dotted lines in Figure l of the drawings, the spring 56 will be compressed, thus preventing the swinging movement of the handle 50 or the base portion of the jack. This permits the jack to be readily placed in position under the work by the handle 50. The outer end of the handle section 50 is provided with an enlarged spherical handle knob 57, and this knob forms a. convenient hand grip when the jack is operated by the handle section 50 without the use of the removable handle section 5l. Vhen the jack is to be operated simply by the handle section 50, the same is swung at any desired angle to the shaft 30, so as to act in the nature of a crank, and this handle is then moved in a circular path, so as: to permit the ready rotation of the stub shaft 30.

The removable. handle section 51 includes an inner and an outer portion 60 and 6l, which are pivotallyconnected together by means of u. pin 62, in order to permit the ready collapsing or folding of the section 5.

The outer portion 6l carries a- T-head 63, to which may be pivoted by meansof pins 64, handles 65. By this construction, it can bef seen that the handle can be readily collapsed in parallel relation to the shank portion of the section 5l. The inne-r end'of the portion` 60 of the handle sectionv 5l is provided with a polygonal extension 66, which is adapted to readily it in a polygonal socket 67 formed in the spherical handle knob 57 of the inner handle section 50. This construction permits the handle extension 5l to be readily disconnected from the inner handle section 50 and allows the jack to be readily operated at a considerable distance therefrom, in order to eliminate the bending over of the user of the jack when the same is placed under a vehicle.-

From the foregoing description, it can be seen that an exceptionally simple and durable jack has been provided, which can be readily and easily operated, and which will always be ready for use and present longevity owing to the novel construction thereof.

Changes in details may be made, .without departing from the spirit or scope of this invention; but,

I claim:

1. In a jack, a base, a hollow column on the base, an elevating screw slidably mounted in the column, the inner lface of the column having spaced guideways therein, a pin carried by the screw and movable in said guide ways, an elevatingl foot carried by the upper end of the screw, an inclined operating shaft rotatably mounted in said column, said shaft having a depression in its inner -end disposed in alignment ways, means operatively connecting the shaft with the screw, and an operating handle pivotally connected to said operating shaft.

2. A jack of the class described comprising a base including an imperforate base plate and a hollow upstanding column, an elevating screw slidably mounted in the column, means for preventing rotation of the screw with one of the guide` in the column, a gear case formed integral v with the upper end of the column, the walls of the casing defining the same from the column, a removable cap member forming one of the side walls of the casing permitting the easy assembling of the parts, disposed in the case, and operatively connected with said screw, and means ,for operating the gears from the ,exterior of the case.

3. In a jack, a base, a hollow upstanding column formed on the base, an elevating screw slidably mounted in the column, the inner face of the column having longitudinally extending guide ways formed therein, a diametrically extending pin carried by the lower end of operating gears tation of thescrew, a, lifting foot carried by the upper end of the screw, an integral gear case formed on the upper end of the column, an internal shoulder formed in the gear case, a nut mounted upon the shoulder, receiving the screw, a bevelled gear formed 0n the nut7 an inclined operati-ng shaft rotatably mounted in the gear case, said inclined shaft having a depression in its inner end disposed in alignment With one of the guideways, a relatively small bevelled gear keyed to said inclined shaft and meshing with the first mentioned bevelled gear, and an operating hanfdle pivotally connected to said opera-ting sha t.

JOSEPH ABBIUSO. 

